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Related Concept Videos

Inflammation01:38

Inflammation

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Overview
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Inflammatory Response01:28

Inflammatory Response

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An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
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Inflammatory Response I: Vascular and Cellular01:30

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The inflammatory response is the body's defense against infection, injury, or irritation from bacteria, trauma, toxins, or heat. Inflammation helps locate and destroy pathogens and remove damaged tissue elements to heal the body. During this initial phase, fluid, blood products, and nutrients migrate to the injured area, resulting in redness, heat, swelling, ache, and loss of function. Moreover, signs of systemic inflammation include fever, increased WBC count, malaise, anorexia, nausea,...
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Inflammatory Response II: Inflammatory Exudate and Tissue Repair01:24

Inflammatory Response II: Inflammatory Exudate and Tissue Repair

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The immune system's inflammatory response destroys the invading pathogen, permitting the tissue to heal. The changes during the cellular and vascular stages allow exudate formation at the site of inflammation. The inflammatory exudate released from the wound has high protein content and a specific gravity above 1.020.
The typical wound exudate is odorless, transparent, straw-colored, thin, and watery. Exudate, however, can differ depending on the state of wound healing. Likewise, the...
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Psychoneuroimmunology: Cardiovascular Disease01:27

Psychoneuroimmunology: Cardiovascular Disease

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Psychoneuroimmunology (PNI) is a multidisciplinary field that examines how psychological factors, particularly stress, interact with the immune system and impact physical health. Research in PNI has shown that chronic or traumatic stress can disrupt both the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system. These disruptions contribute to serious health conditions, including cardiovascular diseases.
A key area of focus in PNI is the relationship between stress and coronary...
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Neurogenesis and Regeneration of Nervous Tissue01:15

Neurogenesis and Regeneration of Nervous Tissue

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In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
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Updated: Jul 27, 2025

Brain Ventricular Microinjections of Lipopolysaccharide into Larval Zebrafish to Assess Neuroinflammation and Neurotoxicity
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Neuroinflammation: 2022 update.

Hans Lassmann1

  • 1Center for Brain Research, Medical University of Vienna Austria.

Free Neuropathology
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PubMed
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This summary is machine-generated.

Recent neuropathological studies reveal insights into neurodegeneration mechanisms, highlighting the dual role of microglia in brain disease and emphasizing synaptic damage and neuronal vulnerability.

Keywords:
Alzheimer’s diseaseCOVID-19MicrogliaMultiple sclerosisNeurodegeneration

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Detection of MicroRNAs in Microglia by Real-time PCR in Normal CNS and During Neuroinflammation
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Area of Science:

  • Neuroscience
  • Neuropathology
  • Immunology

Background:

  • COVID-19-associated brain disease understanding has advanced.
  • Neuropathological studies in 2021 offered key insights into neurodegeneration.
  • Neuroinflammation research benefits from advanced molecular detection techniques.

Purpose of the Study:

  • To analyze disease mechanisms in neuroinflammatory conditions using novel techniques.
  • To elucidate the role of microglia in neurodegeneration.
  • To understand synaptic damage and neuronal vulnerability in neurological diseases.

Main Methods:

  • Utilized advanced techniques for simultaneous multi-molecule detection within single cells.
  • Analyzed experimental and human neuroinflammatory conditions.
  • Conducted neuropathological studies.

Main Results:

  • Elucidated stage- and context-dependent protective and detrimental effects of activated microglia.
  • Demonstrated the role of microglia in inducing and propagating neurodegeneration.
  • Highlighted the significance of synaptic damage and selective neuronal vulnerability.

Conclusions:

  • Recent findings provide crucial new insights into neurodegeneration.
  • Understanding microglia's complex role is vital for neuroinflammatory diseases.
  • Synaptic integrity and neuronal vulnerability are key factors in disease progression.